Actin rings expand outwards to help create watertight junctions between adjacent cells in the early embryo
Laboratory Studies of Vertebrate and Invertebrate Embryos: Guide and Atlas of Descriptive and Experimental Development (9th Edition) 9th Edition
BIRTH OF AN EMBRYO: The haploid nuclei from an egg and a sperm in the zygote following fertilization© PETIT FORMAT/SCIENCE SOURCE
Ground-breaking research could transform understanding of early embryonic development, but raises ethical concerns.
A zebrafish egg cell forms a complex embryo in only a few hours. Video by Fengzhu Xiong and Sean Megason
1, 2016) – A team of scientists in Singapore has developed advanced microscopy techniques to monitor embryo development in real time, revealing how ...
. Seaside studies in natural history. Marine animals. EMBRYOLOGY OF ECHINODERMS. 129 close thus over them. Pig. 168 represents the upper surface of the ...
Estimated gestational age of collected specimens (bold italic) within the time-course of inner ear embryonic development.
Figure 1: The image above shows the process of transformation from a single-celled zygote to a gastrula.
TAKING CONTROL: In the first hours after fertilization, maternal factors residing in the oocyte cytoplasm dictate early development.
A chick emerges after a brief three weeks of incubation. The complexity of the development cannot be understood without training in embryology.
Download figure · Open in new tab · Download powerpoint. Figure 7. Overexpression of bHLH49 Affects Suspensor and Embryo Development.
An egg early in development and before fertilization. Seen as a circular structure containing a circular nucleus.
... suggest that embryos derived from depleted cells have the potential to effectively regulate their mtDNA copy number during preimplantation development.
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Macrophages are shown to originate from two distinct sources during the earliest stages of development in the embryo
Single-cell RNA sequencing reveals developmental heterogeneity of blastomeres during major genome activation in bovine embryos | Scientific Reports
A Robust Auxin Response Network Controls Embryo and Suspensor Development through a Basic Helix Loop Helix Transcriptional Module | Plant Cell
Hormones and Embryonic Development - 1st Edition - ISBN: 9780080182391, 9781483151717. View on ScienceDirect
Sea urchins and other echinoderms are a useful model system for studying many problems in early development.
The sea urchin egg is used as a model to study the cleavage in an isolecithal type of egg (iso = even; lecithal = yolk).
The rearrangement of the cells in the mammalian blastula to two layers—the inner cell mass and the trophoblast—results in the formation of the blastocyst.